# HG changeset patch
# User Markus Mützel <markus.muetzel@gmx.de>
# Date 1547894389 -3600
# Node ID 3e7fa894731a354f922906009938c0a9fe1243fd
# Parent  ad70a85f702b7ace1daf4a21e9a69e180de81025
documentation: Replace ASCII with UTF-8 where it is more correct.

* doc/interpreter/string.txi: Octave casts numerical values to UTF-8 instead of
ASCII. Add reference to "unicode2native" and "native2unicode" earlier in the
manual.

* scripts/help/warning_ids.m: Octave casts numerical values to UTF-8 instead of
ASCII.

diff -r ad70a85f702b -r 3e7fa894731a doc/interpreter/strings.txi
--- a/doc/interpreter/strings.txi	Fri Jan 18 11:18:23 2019 +0100
+++ b/doc/interpreter/strings.txi	Sat Jan 19 11:39:49 2019 +0100
@@ -256,8 +256,9 @@
 
 @itemize @bullet
 @item All string concatenation functions except @code{cstrcat}
-convert numerical input into character data by taking the corresponding ASCII
-character for each element, as in the following example:
+convert numerical input into character data by taking the corresponding UTF-8
+character for each element (or multi-byte sequence), as in the following
+example:
 
 @example
 @group
@@ -266,6 +267,10 @@
 @end group
 @end example
 
+For conversion between locale encodings and UTF-8, see
+@ref{XREFunicode2native,,unicode2native} and
+@ref{XREFnative2unicode,,native2unicode}.
+
 @item
 @code{char} and @code{strvcat}
 concatenate vertically, while @code{strcat} and @code{cstrcat} concatenate
@@ -363,13 +368,13 @@
 @node Converting Numerical Data to Strings
 @subsection Converting Numerical Data to Strings
 Apart from the string concatenation functions (@pxref{Concatenating Strings})
-which cast numerical data to the corresponding ASCII characters, there are
-several functions that format numerical data as strings.  @code{mat2str} and
-@code{num2str} convert real or complex matrices, while @code{int2str} converts
-integer matrices.  @code{int2str} takes the real part of complex values and
-round fractional values to integer.  A more flexible way to format numerical
-data as strings is the @code{sprintf} function (@pxref{Formatted Output},
-@ref{XREFsprintf,,sprintf}).
+which cast numerical data to the corresponding UTF-8 encoded characters, there
+are several functions that format numerical data as strings.  @code{mat2str}
+and @code{num2str} convert real or complex matrices, while @code{int2str}
+converts integer matrices.  @code{int2str} takes the real part of complex
+values and round fractional values to integer.  A more flexible way to format
+numerical data as strings is the @code{sprintf} function
+(@pxref{Formatted Output}, @ref{XREFsprintf,,sprintf}).
 
 @DOCSTRING(mat2str)
 
diff -r ad70a85f702b -r 3e7fa894731a scripts/help/warning_ids.m
--- a/scripts/help/warning_ids.m	Fri Jan 18 11:18:23 2019 +0100
+++ b/scripts/help/warning_ids.m	Sat Jan 19 11:39:49 2019 +0100
@@ -269,7 +269,7 @@
 ##
 ## @item Octave:num-to-str
 ## If the @code{Octave:num-to-str} warning is enable, a warning is
-## printed for implicit conversions of numbers to their ASCII character
+## printed for implicit conversions of numbers to their UTF-8 encoded character
 ## equivalents when strings are constructed using a mixture of strings and
 ## numbers in matrix notation.  For example,
 ##
@@ -344,8 +344,8 @@
 ##
 ## @item Octave:str-to-num
 ## If the @code{Octave:str-to-num} warning is enabled, a warning is printed
-## for implicit conversions of strings to their numeric ASCII equivalents.
-## For example,
+## for implicit conversions of strings to their numeric UTF-8 encoded byte
+## sequences.  For example,
 ##
 ## @example
 ## @group